Title :
An 18-40 GHz phase locked downconverter subsystem
Author_Institution :
Com Dev Ltd., Cambridge, Ont., Canada
Abstract :
A high-performance frequency conversion module (FCM) has been developed for ground-based EQ system applications. The FCM unit is built using integrated finline and hybrid MIC (microwave integrated circuit) techniques to achieve a low-noise high-performance millimeter-wave front-end without the use of a millimeter-wave LNA (low-noise amplifier). The FCM unit channels the 18 to 40 GHz into three bands and downconverts each band to a common 8-18-GHz intermediate frequency. The FCM design includes a novel wideband millimeter-wave limiter and millimeter-wave local oscillator for each of the bands. A noise figure of <13 dB was achieved in all three bands with a 50-dB dynamic range.<>
Keywords :
electronic warfare; fin lines; frequency convertors; hybrid integrated circuits; microwave integrated circuits; phase-locked loops; 18 to 40 GHz; dynamic range; frequency conversion module; ground-based EQ system applications; hybrid MIC; integrated finline; intermediate frequency; millimeter-wave front-end; millimeter-wave limiter; millimeter-wave local oscillator; noise figure; phase locked downconverter subsystem; Finline; Frequency conversion; Hybrid integrated circuits; Low-noise amplifiers; Microwave integrated circuits; Microwave theory and techniques; Millimeter wave circuits; Millimeter wave integrated circuits; Millimeter wave technology; Wideband;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.146968
